Apparatus and method for determination of frame structure for reducing interference in frequency reuse system using cognitive radio
US8724652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2009 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Apr 28, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W74/0808
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed are an apparatus and method for determining a frame structure for reducing interference between users using the same frequency band in a communication system using a cognitive radio, the method including, collecting channel status information related to a primary user with a priority to occupancy of a predetermined frequency band, executing spectrum sensing for the frequency band to check whether the primary user's traffic exists, deciding a length of a data frame to be transmitted in consideration of interference to the primary user based upon the collected channel status information if a channel in which the primary user's traffic is not present is sensed through the spectrum sensing, constructing a data frame based upon the decided frame length to transmit via the sensed channel, and re-executing the spectrum sensing for the channel, if data to be additionally transmitted exists, and rechecking whether the primary user's traffic is present.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.